.lesson-quiz-container{display:block}.quiz-intro{margin-bottom:var(--spacing-lg)}.quiz-intro-desc{margin:0 0 var(--spacing-md);font-size:var(--text-base);color:var(--text-primary)}.quiz-acc-title{display:inline-flex;align-items:center;gap:8px;font-size:var(--text-base);font-weight:500;color:var(--text-primary)}.quiz-acc-title svg{width:1rem;height:1rem;flex-shrink:0;color:currentColor}.quiz-acc-content{font-size:var(--text-base);color:var(--text-secondary)}.lesson-quiz-container .quiz-acc-content p{margin:0 0 var(--spacing-sm)}.quiz-acc-content strong{color:var(--text-primary);font-weight:600}.quiz-acc-note{margin:var(--spacing-sm) 0 0!important;font-size:var(--text-xs);color:var(--text-tertiary-color,var(--text-secondary))}.quiz-acc-asterisk{font-weight:600}.quiz-acc-content ol.quiz-acc-list,.quiz-acc-content ul.quiz-acc-list{margin-bottom:0}.quiz-video-tile{position:relative;display:flex;align-items:center;gap:12px;width:100%;margin:0 0 var(--spacing-md);padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-sm);corner-shape:squircle;background:var(--card-bg);background-size:cover;background-position:center;cursor:pointer;text-align:left;transition:transform var(--dur-fast, 120ms) var(--ease-out, ease),box-shadow var(--dur-base, 200ms) var(--ease-out, ease)}.quiz-video-tile:hover{transform:translateY(-1px);box-shadow:var(--card-shadow)}.quiz-video-play{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex-shrink:0;color:#fff;background:var(--primary-color);border-radius:var(--radius-sm);corner-shape:squircle}.quiz-video-play svg{width:1.05rem;height:1.05rem;margin-left:2px;fill:currentColor}.quiz-video-label{font-size:var(--text-base);font-weight:600;color:var(--text-primary)}.quiz-video-tile.has-poster{display:block;height:180px;padding:0;border-radius:var(--radius-md);overflow:hidden}.quiz-video-tile.has-poster::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 40%,rgba(0,0,0,.55) 100%)}.quiz-video-tile.has-poster .quiz-video-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1;width:56px;height:56px;background:rgba(0,0,0,.55);backdrop-filter:blur(2px)}.quiz-video-tile.has-poster:hover .quiz-video-play{background:var(--primary-color)}.quiz-video-tile.has-poster .quiz-video-play svg{width:1.4rem;height:1.4rem}.quiz-video-tile.has-poster .quiz-video-label{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:var(--spacing-md);color:#fff}.quiz-video-modal{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg);background:rgba(0,0,0,.8);opacity:0;transition:opacity var(--dur-base, 200ms) var(--ease-out, ease)}.quiz-video-modal.is-open{opacity:1}.quiz-video-modal-inner{position:relative;width:min(1180px,100%)}.quiz-video-frame{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:var(--radius-md);corner-shape:squircle;overflow:hidden}.quiz-video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.quiz-video-close{position:absolute;top:-48px;right:0;z-index:2;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;color:#111;background:#fff;border:0;border-radius:999px;cursor:pointer;box-shadow:0 2px 10px rgba(0,0,0,.3);transition:transform var(--dur-fast, 120ms) var(--ease-out, ease)}.quiz-video-close:hover{transform:scale(1.06)}.quiz-video-close svg{width:1.2rem;height:1.2rem}@media (max-height:560px),(max-width:600px){.quiz-video-close{top:8px;right:8px}}@media (prefers-reduced-motion:reduce){.quiz-video-modal,.quiz-video-tile{transition:none}.quiz-video-tile:hover{transform:none}}.quiz-card{display:flex;flex-direction:column;padding:var(--spacing-md);background:var(--card-bg);box-shadow:var(--card-shadow);border-radius:var(--radius-md);corner-shape:squircle}.quiz-card-chips{margin-top:var(--spacing-xs)}.quiz-card-foot{margin-top:var(--spacing-md)}.quiz-card:not(:last-child){margin-bottom:var(--spacing-sm)}.quiz-card:not(.is-skeleton){animation:quiz-card-in var(--dur-slow,320ms) var(--ease-out,cubic-bezier(.22,1,.36,1)) both}.quiz-card:not(.is-skeleton):nth-child(2){animation-delay:60ms}.quiz-card:not(.is-skeleton):nth-child(3){animation-delay:120ms}.quiz-card:not(.is-skeleton):nth-child(n+4){animation-delay:180ms}@keyframes quiz-card-in{from{opacity:0;transform:translateY(8px) scale(.985)}to{opacity:1;transform:none}}.quiz-content-container.no-anim .quiz-card:not(.is-skeleton){animation:none}.quiz-card-head{display:flex;align-items:flex-start;gap:var(--spacing-sm)}.quiz-card-titles{min-width:0;flex:1}.quiz-card-title{display:block;margin-bottom:var(--spacing-xs);font-size:var(--text-lg);font-weight:600;color:var(--text-primary)}.quiz-card-chips{display:flex;flex-wrap:wrap;gap:8px}.quiz-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;font-size:var(--text-sm);font-weight:500;color:var(--text-secondary);background:var(--bg-muted-color);border:1px solid var(--border-color);border-radius:var(--radius-xs);corner-shape:squircle}.quiz-chip svg{width:.85rem;height:.85rem;flex-shrink:0}.quiz-result{display:flex;flex-direction:column;line-height:1.15;min-width:0}.quiz-result-value{font-size:var(--text-xl);font-weight:700;color:var(--text-primary);font-variant-numeric:tabular-nums}.quiz-result-caption{margin-top:var(--spacing-xs);font-size:var(--text-sm);color:var(--text-secondary)}.quiz-result--high .quiz-result-value{color:var(--success-color)}.quiz-result--mid .quiz-result-value{color:#d97706}.quiz-result--low .quiz-result-value{color:#dc2626}.quiz-card-foot{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm);flex-wrap:wrap}.quiz-card-status{display:inline-flex;align-items:center;gap:6px;font-size:var(--text-md);font-weight:500;color:var(--success-color)}.quiz-card-status.is-pending{color:var(--text-secondary)}.quiz-card-status svg{width:1rem;height:1rem}.quiz-start-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;min-width:172px;transition:transform var(--dur-fast, 120ms) var(--ease-out, cubic-bezier(.22, 1, .36, 1))}.quiz-start-btn:active{transform:scale(.97)}.quiz-go-arrow{position:absolute;right:.85rem;top:50%;width:1rem;height:1rem;opacity:0;transform:translateY(-50%) translate(-4px,4px);transition:opacity var(--dur-base, 200ms) var(--ease-out, ease),transform var(--dur-base, 200ms) var(--ease-out-soft, cubic-bezier(.16, 1, .3, 1))}.quiz-start-btn:focus-visible .quiz-go-arrow,.quiz-start-btn:hover .quiz-go-arrow{opacity:1;transform:translateY(-50%) translate(0,0)}.quiz-card-error{margin:0;font-size:var(--text-sm);color:#dc2626}.quiz-empty-state,.quiz-error-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--spacing-xs);padding:calc(var(--spacing-lg) + 8px) var(--spacing-md);background:var(--card-bg);box-shadow:var(--card-shadow);border-radius:var(--radius-md);corner-shape:squircle}.quiz-empty-state svg,.quiz-error-icon svg{width:28px;height:28px;color:var(--text-secondary)}.quiz-error-title{margin:0;font-size:var(--text-plus);font-weight:600;color:var(--text-primary)}.lesson-quiz-container .quiz-empty-state p,.quiz-error-body{margin:0;font-size:var(--text-base);color:var(--text-secondary)}.retry-quiz-btn{margin-top:var(--spacing-xs);display:inline-flex;align-items:center;gap:6px}.quiz-card.is-skeleton{pointer-events:none}.quiz-card .skeleton-block{display:block;background:linear-gradient(90deg,var(--skeleton-base) 25%,var(--skeleton-highlight) 50%,var(--skeleton-base) 75%);background-size:200px 100%;animation:shimmer 1.8s ease-in-out infinite;border-radius:var(--radius-xs);corner-shape:squircle}.quiz-card .skeleton-title{width:55%;height:18px;margin-bottom:8px}.quiz-card .skeleton-line{width:80%;height:12px}.quiz-card .skeleton-line.short{width:30%}.quiz-card .skeleton-chip{width:84px;height:26px;border-radius:var(--radius-xs)}.quiz-card .skeleton-btn{width:110px;height:38px;border-radius:999px}.quiz-start-btn .spin{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}[data-theme=dark] .quiz-card-error{color:#f87171}.quiz-readiness{margin:var(--spacing-md,1.5rem) 0;padding:var(--spacing-sm) var(--spacing-md,1.5rem);border:1px solid var(--border-color);border-radius:var(--radius-md);corner-shape:squircle}.quiz-readiness .zone-low{--zone:var(--active-red)}.quiz-readiness .zone-mid{--zone:var(--active-yellow)}.quiz-readiness .zone-high{--zone:var(--active-green)}.readiness-head{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--text-primary-color)}.readiness-head svg{width:18px;height:18px}.readiness-title{margin:0;font-size:var(--text-base);font-weight:600}.quiz-readiness .readiness-sub{margin:.5rem 0;font-size:var(--text-base);color:var(--text-tertiary-color)}.quiz-readiness .readiness-invite{margin:var(--spacing-xs) 0 0;font-size:var(--text-base);color:var(--text-secondary)}.quiz-readiness .readiness-run-btn{margin-top:var(--spacing-sm)}.readiness-steps{display:flex;flex-direction:column;gap:var(--spacing-xs);margin-top:var(--spacing-sm)}.readiness-step{display:flex;align-items:center;gap:var(--spacing-xs);font-size:var(--text-md);color:var(--text-tertiary-color);opacity:.45;transition:opacity var(--dur-fast) var(--ease-out),color var(--dur-fast) var(--ease-out)}.readiness-step.is-active,.readiness-step.is-done{opacity:1}.readiness-step.is-done{color:var(--text-secondary)}.readiness-step-icon{width:18px;height:18px;flex:none}.rs-ring{fill:none;stroke:var(--text-tertiary-color);stroke-width:2;stroke-linecap:round;stroke-dasharray:16 62.9;transform-origin:center;transition:stroke-dasharray .4s var(--ease-out),stroke .4s var(--ease-out)}.readiness-step.is-active .rs-ring{stroke:var(--brand-color);animation:readiness-ring-spin .9s linear infinite}.readiness-step.is-done .rs-ring{stroke:var(--active-green);stroke-dasharray:62.9 62.9;animation:none}@keyframes readiness-ring-spin{to{transform:rotate(360deg)}}.rs-check{fill:none;stroke:var(--active-green);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:14;stroke-dashoffset:14;transition:stroke-dashoffset .3s var(--ease-out) .25s}.readiness-step.is-done .rs-check{stroke-dashoffset:0}.readiness-meter{display:flex;flex-direction:column;gap:var(--spacing-xs);margin-top:var(--spacing-sm)}.readiness-score-row{position:relative;display:inline-flex;align-items:center;gap:var(--spacing-xs);width:fit-content;cursor:default}.readiness-score-row svg{width:14px;height:14px;color:var(--text-tertiary-color)}.readiness-score{font-size:var(--text-lg);font-weight:600;font-variant-numeric:tabular-nums;color:var(--zone)}.readiness-track{position:relative;height:8px;border-radius:999px;background:color-mix(in srgb,var(--text-tertiary-color) 20%,transparent);overflow:hidden}.readiness-fill{width:100%;height:100%;background:var(--zone);transform:scaleX(0);transform-origin:left;transition:transform .8s var(--ease-out)}.readiness-tick{position:absolute;top:0;bottom:0;width:2px;background:var(--bg-color)}.quiz-readiness .readiness-line{margin:var(--spacing-xs) 0 0;font-size:var(--text-base);color:var(--text-secondary)}.quiz-readiness .readiness-checked{margin:var(--spacing-xs) 0 0;font-size:var(--text-xs);color:var(--text-tertiary-color)}.readiness-delta{font-size:var(--text-xs);color:var(--text-tertiary-color);font-variant-numeric:tabular-nums}.quiz-readiness .readiness-table{margin:var(--spacing-sm) 0 0;font-size:var(--text-md);box-shadow:none;border:none;border-radius:0;overflow:visible;background-color:transparent!important}.quiz-readiness .readiness-table tbody>tr:nth-child(odd)>td{background-color:transparent}.quiz-readiness .readiness-table td,.quiz-readiness .readiness-table th{padding:.65rem .75rem}.quiz-readiness .readiness-table td:first-child,.quiz-readiness .readiness-table th:first-child{padding-left:0}.quiz-readiness .readiness-table td:last-child,.quiz-readiness .readiness-table th:last-child{padding-right:0}.quiz-readiness .readiness-table th{padding-top:.45rem;padding-bottom:.45rem;background-color:transparent!important;font-size:var(--text-md);font-weight:500;color:var(--text-tertiary-color)}.quiz-readiness .readiness-table th::after{content:none}.quiz-readiness .readiness-table td:nth-child(n+2),.quiz-readiness .readiness-table th:nth-child(n+2){width:6em;text-align:right}.quiz-readiness .readiness-table tbody tr{opacity:0;animation:readiness-row-in .35s var(--ease-out) forwards;animation-delay:calc(var(--row-index, 0) * .09s + .1s)}@keyframes readiness-row-in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.readiness-cell-meta{font-size:var(--text-md);color:var(--text-tertiary-color);font-variant-numeric:tabular-nums}.readiness-cell-value{font-weight:600;font-variant-numeric:tabular-nums;color:var(--zone)}.readiness-cell-value.is-untouched{font-weight:400;font-size:var(--text-md);color:var(--text-tertiary-color)}.readiness-th-tip{position:relative;cursor:default;text-decoration:underline dotted;text-underline-offset:3px}@media (prefers-reduced-motion:reduce){.quiz-card:not(.is-skeleton){animation:none}.quiz-go-arrow,.quiz-start-btn{transition:none}.quiz-start-btn:active{transform:none}.quiz-go-arrow{opacity:1;transform:translateY(-50%)}.readiness-fill{transition:none}.readiness-step.is-active .rs-ring{animation:none}.quiz-readiness .readiness-table tbody tr{animation:none;opacity:1}}.sidebar-header{margin:var(--spacing-md) 0}.sidebar-header h3{font-size:var(--text-base);font-weight:500;color:var(--text-primary)}#left-sidebar{grid-area:left-sidebar;border-right:1px solid var(--border-color);transition:padding .35s var(--ease-in-out, ease-in-out),border-color .35s var(--ease-in-out, ease-in-out);position:relative;margin:0;padding:1.5rem 1rem;padding-top:0;background:var(--sidebar-bg);overflow-y:auto;overflow-x:hidden;z-index:10;box-sizing:border-box;-webkit-user-select:none;user-select:none;scrollbar-width:thin;scrollbar-color:transparent transparent}#left-sidebar:hover{scrollbar-color:var(--scrollbar-thumb,rgba(120,120,120,0.35)) transparent}#left-sidebar::-webkit-scrollbar{width:6px}#left-sidebar::-webkit-scrollbar-track{background:0 0}#left-sidebar::-webkit-scrollbar-thumb{background:0 0;border-radius:999px;border:1px solid transparent;background-clip:padding-box;transition:background-color var(--dur-base, .2s) var(--ease-out, ease)}#left-sidebar:hover::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb,rgba(120,120,120,.35));background-clip:padding-box}#left-sidebar::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover,rgba(120,120,120,.6));background-clip:padding-box}#left-sidebar #course-navigation,#left-sidebar .sidebar-header{box-sizing:border-box;transition:opacity .35s var(--ease-in-out, ease-in-out),filter .35s var(--ease-in-out, ease-in-out)}#left-sidebar.collapsed #course-navigation,#left-sidebar.collapsed .sidebar-header{opacity:0;filter:blur(4px)}@media (min-width:1025px){#left-sidebar #course-navigation,#left-sidebar .sidebar-header{width:calc(var(--sidebar-width) - 2rem)}}@media (max-width:1024px){#left-sidebar{width:var(--sidebar-width);min-width:250px;max-width:350px}}@media (max-width:550px){#left-sidebar{width:90vw;min-width:250px;max-width:90vw}}.sidebar-fade-bottom,.sidebar-fade-top{height:0;width:100%;position:sticky;pointer-events:none;z-index:2}.sidebar-fade-top{top:0}.sidebar-fade-top::before{content:'';display:block;height:30px;width:100%;background:radial-gradient(ellipse 100% 50% at center top,rgba(var(--sidebar-bg-rgb),.95) 0,rgba(var(--sidebar-bg-rgb),.8) 30%,rgba(var(--sidebar-bg-rgb),.4) 60%,transparent 100%),linear-gradient(180deg,var(--sidebar-bg) 0,rgba(var(--sidebar-bg-rgb),.6) 70%,transparent 100%)}.sidebar-fade-bottom{bottom:0}.sidebar-fade-bottom::before{content:'';display:block;height:30px;width:100%;background:radial-gradient(ellipse 100% 50% at center bottom,rgba(var(--sidebar-bg-rgb),.95) 0,rgba(var(--sidebar-bg-rgb),.8) 30%,rgba(var(--sidebar-bg-rgb),.4) 60%,transparent 100%),linear-gradient(0deg,var(--sidebar-bg) 0,rgba(var(--sidebar-bg-rgb),.6) 70%,transparent 100%)}#left-sidebar:not(.collapsed){border-right:1px solid var(--border-color)}#bottom-control-bar{grid-area:controls;background-color:var(--control-bar-bg);border-top:1px solid var(--border-color);height:var(--control-bar-height,60px);position:sticky;bottom:0;z-index:110;box-shadow:0 0 -2px 10px rgba(0,0,0,.05);overflow-x:hidden}.control-bar-container{max-width:100%;margin:0 auto;height:100%;display:flex;justify-content:space-between;align-items:center;padding:0 var(--spacing-md)}.lesson-controls{display:flex;align-items:center;gap:var(--spacing-sm)}.lesson-completion-status{font-size:var(--text-md);font-weight:500;line-height:normal;border-radius:var(--bttn-radius);display:inline-flex;align-items:center;gap:.5rem;transition:all .3s ease;cursor:default}.lesson-completion-status.in-progress{color:var(--text-secondary-color)}.lesson-completion-status.completed{color:var(--active-green);border:1px solid rgba(0,210,0,.2);background-color:rgba(0,210,0,.05);padding:.5rem 1rem}.single-course-view{max-width:1200px;margin:0 auto;padding:var(--spacing-lg);box-sizing:border-box}.single-course-view .single-course-view-header{text-align:center;position:relative}.single-course-view .single-course-view-title{margin-bottom:var(--spacing-md);color:var(--text-primary);line-height:2rem;font-size:var(--text-xxl);letter-spacing:var(--ls-base)}.single-course-view .single-course-view-header .single-course-view-author{margin:calc(var(--spacing-xs) - var(--spacing-md)) 0 0;font-size:var(--text-base);color:var(--text-secondary)}.single-course-view .modules-section-head{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.single-course-view .course-action-buttons{display:flex;flex-shrink:0;gap:var(--spacing-xs)}.single-course-view .course-action-buttons .bttn{font-size:var(--text-md)}.single-course-view .single-course-view-modules{margin-top:3rem}.single-course-view .single-course-view-modules .modules-section-title{display:block;font-size:var(--text-lg);font-weight:400;color:var(--text-tertiary-color);letter-spacing:var(--ls-base);text-align:left}.single-course-view .modules-list{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.single-course-view .single-course-view-module{background:var(--card-bg);border-radius:var(--radius-md);corner-shape:squircle;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;position:relative;box-shadow:var(--card-shadow);padding:var(--spacing-md);min-height:150px}.single-course-view .module-number-row{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}.single-course-view .module-number-badge{background:0 0;border:1.5px solid var(--shadow-border);color:var(--text-primary-color);width:2.5rem;height:2.5rem;border-radius:var(--radius-lg);corner-shape:squircle;display:flex;align-items:center;justify-content:center;flex-shrink:0}.single-course-view .single-course-view-module.completed .module-number-badge{border-color:var(--success-color)}.single-course-view .single-course-view-module.in-progress .module-number-badge{border-color:#fb9800}.single-course-view .single-course-view-module.not-started .module-number-badge{color:var(--text-tertiary-color)}.single-course-view .module-number{font-size:var(--text-lg);font-weight:600;line-height:1}.single-course-view .module-status{font-size:var(--text-xs);font-weight:500;letter-spacing:var(--ls-lg);text-transform:uppercase}.single-course-view .single-course-view-module.completed .module-status{color:var(--success-color)}.single-course-view .single-course-view-module.in-progress .module-status{color:#fb9800}.single-course-view .single-course-view-module .module-meta-line{display:flex;align-items:center;gap:var(--spacing-xs);font-size:var(--text-sm);color:var(--text-tertiary-color);margin-bottom:var(--spacing-md)}.single-course-view-module .module-header{display:flex;flex-direction:column;margin-bottom:auto}.single-course-view .single-course-view-module .module-title{font-size:var(--text-lg);color:var(--text-primary);line-height:1.6;font-weight:500;margin:0;margin-bottom:var(--spacing-xs)}.single-course-view .single-course-view-module .module-actions{display:flex;flex-direction:column;gap:10px;margin-top:var(--spacing-lg)}.single-course-view .single-course-view-module .module-actions .bttn{width:100%}@media (max-width:768px){.single-course-view .modules-list{grid-template-columns:1fr;gap:var(--spacing-md)}.single-course-view{max-width:100%;padding:var(--spacing-md)}}@media (max-width:1024px) and (min-width:769px){.single-course-view .modules-list{grid-template-columns:repeat(2,1fr)}}@keyframes shimmer{0%{background-position:-200px 0}100%{background-position:calc(200px + 100%) 0}}.skeleton{background:linear-gradient(90deg,var(--skeleton-base) 25%,var(--skeleton-highlight) 50%,var(--skeleton-base) 75%);background-size:200px 100%;animation:shimmer 1.8s ease-in-out infinite;border-radius:var(--radius-lg);corner-shape:squircle}.module-skeleton{margin-bottom:1.5rem;padding:1rem;background:var(--background-color);border-radius:.75rem;border:1px solid rgba(0,0,0,.06)}.module-skeleton-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.module-skeleton-icon{width:16px;height:16px;border-radius:50%;flex-shrink:0}.module-skeleton-title{height:18px;width:65%}.module-skeleton-progress{height:6px;width:100%;margin-bottom:.75rem;border-radius:3px}.module-skeleton-lessons{display:flex;flex-direction:column;gap:.5rem}.lesson-skeleton{display:flex;align-items:center;gap:.75rem;padding:.5rem 0}.lesson-skeleton-icon{width:14px;height:14px;border-radius:50%;flex-shrink:0}.lesson-skeleton-title{height:14px;flex:1}.lesson-skeleton-duration{height:12px;width:32px;flex-shrink:0}.nav-skeleton{padding:1rem}.nav-skeleton-search{height:36px;width:100%;margin-bottom:1.5rem}.nav-skeleton-section{margin-bottom:2rem}.nav-skeleton-section:last-child{margin-bottom:0}.nav-skeleton-heading{height:16px;width:50%;margin-bottom:1rem}.nav-skeleton-section .lesson-skeleton:nth-child(n+4){display:none}.content-skeleton{padding:0;margin:0;max-width:800px;width:100%;box-sizing:border-box}#main-layout.left-collapsed .content-skeleton{margin:0 auto!important}.content-skeleton-header{margin-bottom:3.5rem}.content-skeleton-title{height:3rem;width:70%;margin-bottom:1.5rem}.content-skeleton-meta{margin-bottom:1rem;display:flex;gap:8px}.content-skeleton-tag{padding:6px 8px;height:1.8rem;width:90px;border-radius:var(--radius-xs);corner-shape:squircle}.content-skeleton-body{margin-bottom:2rem}.content-skeleton-paragraph{height:2rem;margin-bottom:1.5rem}.content-skeleton-paragraph:last-child{margin-bottom:0}.content-skeleton-image{border-radius:var(--radius-sm);corner-shape:squircle;margin:2.5rem 0!important}.progress-skeleton{display:flex;align-items:center;gap:.75rem}.progress-skeleton-bar{height:8px;width:180px}.progress-skeleton-text{height:14px;width:70px}.skeleton-container{position:relative;overflow:hidden}.skeleton{position:relative}.skeleton::before{content:'Loading...';position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}@media (prefers-reduced-motion:reduce){.skeleton{animation:none;background:var(--skeleton-base)}}.nav-skeleton{padding:0}.nav-module-skeleton{margin-bottom:2.5rem!important}.nav-module-skeleton .module-header{display:flex;align-items:center}.nav-module-skeleton .module-toggle{margin-right:.75rem;display:flex;flex-shrink:0;width:2.2rem;height:2.2rem}.nav-module-skeleton .module-toggle .skeleton{width:2.2rem;height:2.2rem}.nav-module-skeleton .module-info{flex-grow:1;min-width:0}.nav-module-skeleton .module-title{margin:0;min-height:2.2rem}.nav-module-skeleton .module-title .skeleton{width:100%}.nav-module-skeleton .module-lessons{padding-left:20px;display:block!important;overflow:hidden;transition:var(--lesson-transition);background:var(--lesson-bg)}.nav-lesson-skeleton{padding:.69rem;border-radius:var(--radius-lg);corner-shape:squircle;position:relative}.nav-lesson-skeleton .lesson-title-row{display:flex;align-items:center;width:100%;min-width:0;margin:0;gap:.5rem}.nav-lesson-skeleton .lesson-progress-indicator .skeleton{flex-shrink:0;width:1.5rem;height:1.5rem;display:flex;border-radius:50%;align-items:center;justify-content:center;margin-right:1rem}.nav-lesson-skeleton .lesson-title{flex:1;min-height:1.8rem}.nav-lesson-skeleton .lesson-title .skeleton{display:block}.nav-module-skeleton .skeleton{min-height:inherit}.nav-lesson-skeleton .skeleton{min-height:inherit}.content-skeleton-image,.content-skeleton-paragraph,.content-skeleton-tag,.content-skeleton-title,.lesson-progress-skeleton,.lesson-skeleton-duration,.lesson-skeleton-icon,.lesson-skeleton-title,.lesson-title-skeleton,.module-skeleton-icon,.module-skeleton-progress,.module-skeleton-title,.module-title-skeleton,.module-toggle-skeleton,.nav-skeleton-heading,.nav-skeleton-search,.progress-skeleton-bar,.progress-skeleton-text{background:linear-gradient(90deg,var(--skeleton-base) 25%,var(--skeleton-highlight) 50%,var(--skeleton-base) 75%);background-size:200px 100%;animation:shimmer 1.8s ease-in-out infinite}.content-skeleton .skeleton:not(:last-child){margin-bottom:1rem}.content-skeleton-body>.skeleton:not(:last-child){margin-bottom:1rem}.nav-module-lessons-skeleton{padding:0;padding-left:20px}.nav-lesson-skeleton-item{padding:.69rem;margin-bottom:var(--spacing-xs);border-radius:var(--radius-lg);corner-shape:squircle;background:0 0;border:1px solid transparent}.nav-lesson-skeleton-item:last-child{margin-bottom:0}.nav-lesson-skeleton-item .lesson-title-row{display:flex;align-items:center;width:100%;min-width:0}.nav-lesson-skeleton-bar{display:inline-block;height:28px;width:100%;margin-left:0;background:linear-gradient(90deg,var(--skeleton-base) 25%,var(--skeleton-highlight) 50%,var(--skeleton-base) 75%);background-size:200px 100%;animation:shimmer 1.8s ease-in-out infinite;font-size:var(--text-md);line-height:2}.single-course-skeleton{max-width:1200px;margin:0 auto;padding:var(--spacing-lg);overflow-x:hidden;box-sizing:border-box}.single-course-skeleton-header{text-align:center;position:relative;margin-bottom:3rem}.single-course-skeleton-title{height:32px;width:60%;margin:0 auto var(--spacing-md) auto}.single-course-skeleton-meta{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:var(--spacing-md);margin-bottom:1rem}.single-course-skeleton-meta-item{height:16px;width:150px}.single-course-skeleton-actions{display:flex;gap:var(--spacing-xs);justify-content:center}.single-course-skeleton-button{width:40px;height:40px}.single-course-skeleton-modules{margin-top:3rem}.single-course-skeleton-section-title{height:20px;width:45%;margin-bottom:var(--spacing-sm);text-align:left}.single-course-skeleton-modules-list{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.single-course-skeleton-module-card{border-radius:var(--radius-md);corner-shape:squircle;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;position:relative;box-shadow:0 1px 0 2px var(--shadow-border);padding:var(--spacing-md);min-height:150px;background:var(--background-color)}.single-course-skeleton-module-badge{background:0 0;border:1px solid var(--shadow-border);width:2.2rem;height:2.2rem;border-radius:var(--radius-lg);corner-shape:squircle;margin-bottom:1rem;background:var(--skeleton-base)!important;animation:none!important}.single-course-skeleton-module-header{display:flex;flex-direction:column;margin-bottom:auto}.single-course-skeleton-module-title{height:20px;width:85%;margin-bottom:var(--spacing-sm)}.single-course-skeleton-module-meta{display:flex;align-items:center;gap:var(--spacing-xs);margin-bottom:var(--spacing-sm)}.single-course-skeleton-module-meta-item{height:14px}.single-course-skeleton-module-meta-item:first-child{width:70px}.single-course-skeleton-module-meta-item:nth-child(2){width:8px;height:8px;border-radius:50%}.single-course-skeleton-module-meta-item:last-child{width:80px}.single-course-skeleton-module-actions{display:flex;flex-direction:column;gap:10px;margin-top:var(--spacing-lg)}.single-course-skeleton-action-button{height:40px;width:100%}@media (max-width:768px){.single-course-skeleton{max-width:100%;padding:var(--spacing-md)}.single-course-skeleton-modules-list{grid-template-columns:1fr;gap:var(--spacing-md)}.single-course-skeleton-meta{flex-direction:column;gap:var(--spacing-sm)}}@media (max-width:1024px) and (min-width:769px){.single-course-skeleton-modules-list{grid-template-columns:repeat(2,1fr)}}.module-view-skeleton{max-width:960px;margin:0 auto;padding:var(--spacing-lg) var(--spacing-md);overflow-x:hidden;background-color:var(--content-bg)}.module-view-skeleton-header{text-align:center;margin-bottom:var(--spacing-sm);position:relative}.module-view-skeleton-status{display:inline-block;height:20px;width:100px;margin-bottom:var(--spacing-sm);border-radius:6px}.module-view-skeleton-title{height:2.5rem;width:60%;margin:0 auto var(--spacing-md) auto}.module-view-skeleton-actions{display:flex;justify-content:center;gap:10px;margin-bottom:var(--spacing-sm);flex-wrap:wrap}.module-view-skeleton-primary-btn{height:47px;width:180px}.module-view-skeleton-action-buttons{display:flex;gap:var(--spacing-xs)}.module-view-skeleton-action-btn{width:47px;height:47px}.module-view-skeleton-lessons{margin-top:5rem}.module-view-skeleton-section-title{height:2rem;width:50%;margin-bottom:var(--spacing-sm);text-align:left}.module-view-skeleton-lessons-list{display:flex;flex-direction:column;gap:var(--spacing-md)}.module-view-skeleton-lesson-card{position:relative;border-radius:var(--radius-md);corner-shape:squircle;padding:var(--spacing-md);display:grid;grid-template-columns:auto 1fr auto;grid-template-areas:"number content actions";gap:var(--spacing-sm) var(--spacing-md);align-items:center;border:solid var(--shadow-border);border-width:1px 1px 1px 3px;overflow:hidden;background:var(--background-color)}.module-view-skeleton-lesson-number{grid-area:number;width:38px;height:38px;border-radius:var(--radius-lg);corner-shape:squircle;flex-shrink:0;align-self:center;background:var(--skeleton-base)!important;animation:none!important;box-shadow:0 2px 4px rgba(0,0,0,.1)}.module-view-skeleton-lesson-content{grid-area:content;min-width:0;display:flex;flex-direction:column;justify-content:center}.module-view-skeleton-lesson-status{height:1.5rem;width:120px;margin-bottom:1rem}.module-view-skeleton-lesson-title{height:1.5rem;width:70%;margin-bottom:var(--spacing-sm)}.module-view-skeleton-lesson-description{height:1.25rem;width:90%}.module-view-skeleton-lesson-actions{grid-area:actions;flex-shrink:0;justify-self:end;align-self:center;display:flex;gap:var(--spacing-xs)}.module-view-skeleton-lesson-btn{height:40px;width:80px}@media (max-width:768px){.module-view-skeleton{padding:var(--spacing-md) var(--spacing-sm)}.module-view-skeleton-lesson-card{grid-template-columns:auto 1fr;grid-template-areas:"number content" ". actions"}.module-view-skeleton-lesson-number{align-self:center}.module-view-skeleton-lesson-actions{justify-self:stretch;justify-content:center}.module-view-skeleton-lesson-btn{width:100px}}@media (max-width:480px){.module-view-skeleton-title{width:85%}.module-view-skeleton-lesson-card{grid-template-columns:1fr;grid-template-areas:"number" "content" "actions";text-align:center}.module-view-skeleton-lesson-number{justify-self:center;margin-bottom:var(--spacing-xs)}.module-view-skeleton-lesson-actions{margin-top:var(--spacing-sm);justify-content:center}}.courses-view-skeleton{width:100%;height:100%}.courses-skeleton-container{max-width:1400px;margin:0 auto;width:100%}.courses-skeleton-header{text-align:center}.courses-skeleton-title{height:3.5rem;width:350px;margin:0 auto 1.5rem auto}.courses-skeleton-subtitle{height:2rem;width:90vw;max-width:550px;margin:0 auto}.courses-skeleton-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(275px,1fr));gap:var(--spacing-md);margin-top:3rem}.courses-skeleton-card{background-color:var(--sidebar-background);border-radius:var(--radius-md);corner-shape:squircle;overflow:hidden;display:flex;flex-direction:column;height:100%;min-height:400px;border:1px solid var(--border-color);position:relative;box-shadow:0 2px 8px rgba(0,0,0,.04)}.courses-skeleton-thumbnail{width:100%;height:180px;background-color:var(--border-color);background:var(--border-color)!important;animation:none!important}.courses-skeleton-status-badge{position:absolute;top:var(--spacing-sm);right:var(--spacing-sm);width:70px;height:20px;z-index:2}.courses-skeleton-body{padding:var(--spacing-md);display:flex;flex-direction:column;flex-grow:1}.courses-skeleton-course-title{height:28px;width:85%;margin-bottom:var(--spacing-sm)}.courses-skeleton-meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--spacing-md);margin-bottom:var(--spacing-sm);font-size:.9375rem}.courses-skeleton-meta-icon{width:24px;height:24px;border-radius:50%;flex-shrink:0}.courses-skeleton-circular-progress{width:24px;height:24px;border-radius:50%;flex-shrink:0}.courses-skeleton-footer{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-top:auto}.courses-skeleton-actions{display:flex;gap:var(--spacing-xs)}.courses-skeleton-action-btn{height:40px;width:100%}@media (max-width:768px){.courses-skeleton-card{max-width:none}.courses-skeleton-header{text-align:left}.courses-skeleton-title{margin-left:0}.courses-skeleton-subtitle{margin-left:0}}h1,h2,h3,h4,h5,h6{font-family:Geist,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif;color:var(--text-primary)}h1{font-size:clamp(1.8rem, 4vw, 2.2rem);font-weight:600;letter-spacing:var(--ls-xs);margin-top:.5rem}h2{font-size:clamp(1.5rem, 3.5vw, 1.8rem);font-weight:600;letter-spacing:var(--ls-sm)}h3{font-size:clamp(1.15rem, 2.5vw, 1.3rem);font-weight:600}h4{font-size:clamp(1.05rem, 2.25vw, 1.15rem);font-weight:500;display:flex;align-items:center;gap:1rem}h5{font-size:clamp(1rem, 2vw, 1.1rem);font-weight:500}h6{font-size:clamp(.9rem, 1.8vw, 1rem);font-weight:500;text-transform:uppercase;letter-spacing:.05em}@supports (-webkit-mask:linear-gradient(black,black)){::view-transition-new(root),::view-transition-old(root){animation:none;mix-blend-mode:normal}::view-transition-old(root){z-index:1}::view-transition-new(root){z-index:2;animation:nn-theme-reveal 680ms cubic-bezier(.85,0,.15,1) both}@keyframes nn-theme-reveal{from{clip-path:circle(0% at var(--nn-tx-x,50%) var(--nn-tx-y,50%))}to{clip-path:circle(150vmax at var(--nn-tx-x,50%) var(--nn-tx-y,50%))}}}@media (prefers-reduced-motion:reduce){::view-transition-new(root),::view-transition-old(root){animation:none!important}}.lesson-video-container{width:100%;max-width:100%;margin:2rem 0;background:var(--bg-color,#000);position:relative;border-radius:var(--radius-lg);corner-shape:squircle;overflow:hidden;padding-top:56.25%}.lesson-video-container:has(.video-error-state[style*="display: block"]){padding-top:0;overflow:visible;background:0 0;min-height:220px}.lesson-video-container:has(.video-error-state[style*="display: block"]) .video-error-state{position:static}.video-loading-state{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.video-loading-state .loading-spinner{width:24px;height:24px;border:2px solid var(--input-border-color);border-top:2px solid var(--text-primary-color,#fff);border-radius:50%;animation:spin 1s linear infinite;flex-shrink:0;margin:0 auto}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}.video-loading-state p{margin:.5rem 0;color:var(--text-tertiary-color);font-size:var(--text-base)!important;font-weight:400;letter-spacing:var(--ls-sm)}.video-error-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:.5rem;padding:2.5rem 1.5rem;background:var(--card-bg-color)}.video-error-state[style*="display: block"]{display:flex!important}.video-error-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:.75rem;border-radius:50%;color:var(--text-tertiary-color);background:color-mix(in srgb,var(--text-tertiary-color) 10%,transparent)}.video-error-icon i,.video-error-icon svg{width:22px;height:22px}.video-error-title{margin:0;font-size:var(--text-lg);font-weight:600;color:var(--text-primary-color);letter-spacing:var(--ls-md)}.video-error-body{margin:0;max-width:38ch;font-size:var(--text-base);line-height:1.55;color:var(--text-secondary-color)}.video-error-actions{margin-top:1rem}.video-error-state.is-rate-limited{border-radius:var(--radius-md);corner-shape:squircle}.video-error-state.is-rate-limited .video-error-icon{color:var(--brand-color);background:color-mix(in srgb,var(--brand-color) 12%,transparent)}.video-player-container{position:absolute;top:0;left:0;width:100%;height:100%;background:var(--bg-color,#000)}.video-player-container iframe{width:100%;height:100%;border:none;border-radius:var(--radius-lg);corner-shape:squircle;display:block}.video-controls-bar{display:flex;justify-content:center;align-items:center;gap:1rem;border:1px solid var(--input-border-color);border-radius:var(--radius-lg);corner-shape:squircle;padding:.2em;width:fit-content;align-self:center;margin:0 auto}.video-controls-bar .bttn{border-radius:100%}.video-controls-bar svg{width:1.35rem;height:1.35rem}.theater-mode-popup{aspect-ratio:16/9;width:auto!important;height:auto!important;max-width:95vw!important;max-height:82vh!important;padding:0!important;background:var(--bg-color)!important;border-radius:var(--radius-lg)!important;corner-shape:squircle;overflow:hidden}.theater-mode-popup .video-player-container{height:100%}.theater-mode-popup .video-player-container iframe{height:100%;border-radius:var(--radius-lg);corner-shape:squircle}.theater-close-btn{position:absolute!important;top:1rem!important;right:1rem!important;z-index:10!important;border:.5px solid rgba(255,255,255,.25)!important;background:rgba(0,0,0,.25)!important;backdrop-filter:blur(8px)}.theater-close-btn:hover{border-color:rgba(255,255,255,.4)!important}.theater-mode-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--bg-color);color:var(--text-primary-color);border-radius:var(--radius-lg);corner-shape:squircle;padding:2rem;text-align:center}.video-component-container{width:100%}.component-header{margin-bottom:.5rem}.component-title{font-size:var(--text-base);font-weight:500;color:var(--text-primary-color);margin-top:2rem;margin-bottom:.5rem;letter-spacing:var(--ls-md)}.component-instructions{text-align:left;font-size:var(--text-sm);color:var(--text-tertiary-color);padding:0}.timeline-wrapper{display:flex;align-items:center;gap:1rem;padding:2rem .5rem}.timeline-start-icon{flex-shrink:0;color:var(--text-tertiary-color);display:flex;align-items:center}.bookmark-timeline{flex:1;height:50px;display:flex;align-items:center;position:relative}.bookmark-timeline-track{width:100%;height:5px;background:var(--contrast-light-color);border-radius:3px;position:relative;transition:background .3s ease}.timeline-end-timestamp{flex-shrink:0;font-size:var(--text-xs);color:var(--text-tertiary-color);font-weight:500}.stats-content-wrapper{border:dashed var(--input-border-color);border-width:0 0 0 1px;padding:1rem;margin:2rem 0}.stats-content .stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,125px));gap:1rem;padding:0 .75rem}.stats-content .stat-item{display:flex;flex-direction:column;gap:.75rem}.stats-content .stat-label{overflow-wrap:break-word;white-space:normal;color:var(--text-tertiary-color);font-size:var(--text-xs);letter-spacing:var(--ls-sm)}.stats-content .stat-value{color:var(--text-primary-color);font-size:var(--text-2xl);font-weight:600;letter-spacing:var(--ls-md)}.timeline-toggle-btn.active{background:var(--brand-light);color:var(--brand-color);border-color:var(--brand-color)}.stats-toggle-btn.active{background:var(--brand-light);color:var(--brand-color);border-color:var(--brand-color)}.bookmark-dot{position:absolute!important;width:12px;height:12px;background:0 0;border:none;border-radius:50%;top:-4px;transform:translateX(-50%);cursor:pointer;transition:none}.bookmark-dot::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:var(--brand-color);border:1px solid #fff;border-radius:50%;transition:all .2s ease;box-shadow:0 0 20px 2px rgba(0,85,255,.35)}.bookmark-dot:hover::after{transform:scale(1.4);box-shadow:0 0 0 8px rgba(0,114,255,.15),0 2px 4px rgba(0,0,0,.2)}.replay-segment-dot::after{background:#e74c3c;box-shadow:0 0 20px 2px rgba(231,76,60,.35)}.replay-segment-dot:hover::after{transform:scale(1.4);box-shadow:0 0 0 8px rgba(231,76,60,.15),0 2px 4px rgba(0,0,0,.2)}.bookmark-dot:hover{z-index:100!important}.bookmark-dot:active::after{transform:scale(1.2)}.bookmark-btn.success{animation:bookmarkSuccess .5s ease}@keyframes bookmarkSuccess{0%{transform:scale(1)}50%{transform:scale(1.2);color:var(--active-green);background:rgba(34,197,94,.1)}100%{transform:scale(1)}}.bookmark-context-menu{position:fixed;background:var(--card-bg-color);border:1px solid var(--input-border-color);border-radius:8px;padding:.25rem;box-shadow:var(--shadow-lg);z-index:1000;min-width:160px;animation:menuSlideIn .15s ease}@keyframes menuSlideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.bookmark-context-menu .context-menu-item{width:100%;text-align:left;padding:.5rem .75rem;border-radius:6px;font-size:var(--text-sm);display:flex;align-items:center;gap:.5rem;transition:all .15s ease;color:var(--text-secondary-color)}.bookmark-context-menu .context-menu-item:hover{background:var(--hover-100);color:var(--text-primary-color)}.bookmark-context-menu .context-menu-item i{width:14px;height:14px}@media (max-width:768px){.component-instructions{font-size:calc(var(--text-xs) * .9)}.timeline-wrapper{padding:0 .25rem}}.course-welcome{padding:30px 40px;max-width:900px;margin:20px auto;background-color:var(--color-background-secondary);border-radius:var(--radius-lg);corner-shape:squircle;box-shadow:var(--shadow-medium);color:var(--color-text-primary)}.course-welcome .welcome-header{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--color-border-subtle)}.course-welcome .welcome-header h1{font-size:var(--font-size-xxxl);font-weight:var(--font-weight-bold);color:var(--color-text-headings);margin-bottom:15px;line-height:1.2}.course-welcome .course-stats{display:flex;gap:30px;justify-content:center;flex-wrap:wrap}.course-welcome .stat{display:flex;flex-direction:column;align-items:center;min-width:80px}.course-welcome .stat-number{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-primary)}.course-welcome .stat-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px}.course-welcome .welcome-content{margin-bottom:30px;font-size:var(--font-size-md);line-height:1.7}.course-welcome .welcome-content p{margin-bottom:1em}.course-welcome .welcome-content h2,.course-welcome .welcome-content h3{margin-top:1.5em;margin-bottom:.5em;color:var(--color-text-headings)}.course-welcome .welcome-actions{display:flex;gap:15px;justify-content:center;align-items:center;flex-wrap:wrap}.course-welcome .welcome-actions .btn{min-width:200px;padding:12px 24px;font-size:var(--font-size-md)}.lesson-content p{line-height:1.8rem;margin:1rem 0}.lesson-content h1{margin-top:1rem;margin-bottom:2rem}.lesson-content h2{margin-bottom:1rem;margin-top:3rem}.lesson-content h3{margin-bottom:.5rem;margin-top:2rem;color:var(--text-secondary)}.lesson-content strong{font-weight:600}.lesson-content a:not(.bttn):not(.bttn-link){color:var(--primary-color);background-image:linear-gradient(currentColor,currentColor);background-position:0 100%;background-repeat:no-repeat;background-size:0 1px;line-height:normal;padding-bottom:4px;text-decoration:none;transition:background-size .25s ease}.lesson-content a:not(.bttn):not(.bttn-link):hover{color:var(--primary-color);background-size:100% 1px}.lesson-content a:not(.bttn):not(.bttn-link)::after{content:none}.lesson-content span[style*="text-decoration: underline"]{text-decoration:none!important;position:relative;display:inline;background:0 0;z-index:10;isolation:isolate;font-weight:500;margin:0 .35rem}.lesson-content span[style*="text-decoration: underline"]::after{content:'';position:absolute;left:-.15rem;right:-.15rem;bottom:-.15rem;height:1.4rem;background:radial-gradient(ellipse 69% 100% at left,rgba(var(--highlight-color),.5) 0,rgba(var(--highlight-color),.4) 50%,rgba(var(--highlight-color),.3) 80%,rgba(var(--highlight-color),.2) 100%);z-index:-1;transform:skew(8deg);border-radius:6px}.lesson-content ol,.lesson-content ul{padding-left:3rem;margin-bottom:1.5rem}.lesson-content ol li:not(:last-child),.lesson-content ul li:not(:last-child){padding-bottom:.8rem}.lesson-content ol li,.lesson-content ul li{margin-left:0;line-height:1.8}.lesson-content ol li li,.lesson-content ol ul li,.lesson-content ul li li,.lesson-content ul ol li{padding:.5rem}.lesson-content table{font-size:var(--text-base);border-radius:var(--radius-lg);corner-shape:squircle;box-shadow:none}.lesson-content table td,.lesson-content table th{padding:.75rem}.lesson-content figure{margin:0}.lesson-content figcaption{color:var(--text-muted-color);font-size:var(--text-base);line-height:1.4em;text-align:center}.wp-block-details{margin-bottom:1.5em;margin-left:.5em;border:1px solid var(--border-color);border-radius:var(--radius-md);corner-shape:squircle;padding:.75em}.wp-block-details summary{color:var(--primary-color);margin-bottom:.5em;text-decoration:underline;cursor:pointer;font-weight:500}.wp-block-details>:last-child{margin-left:1em}.wp-block-image img{border-radius:var(--radius-sm);corner-shape:squircle;display:block;margin:30px auto;max-width:100%;height:auto;cursor:zoom-in}#lesson-content .wp-block-embed{height:auto;margin:40px auto;width:100%}.wp-block-embed__wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--radius-xs);corner-shape:squircle;box-shadow:0 0 5px 1px rgba(0,0,0,.1);margin:0 1rem}.wp-block-embed__wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0;border-radius:var(--radius-xs);corner-shape:squircle}.katex{font-size:1.18em!important;font-weight:500!important}.concept,.formula,.notice,.problem{border-radius:16px!important;margin-top:2em!important;margin-bottom:2em!important;padding:1.5rem;margin:0 1rem;line-height:1.6;font-weight:400!important}.problem{background-color:var(--article-concept-bg)!important;color:var(--article-concept-text)!important;border:1px solid var(--shadow-border);border-radius:6px 6px 16px 16px!important}.formula{background-color:var(--article-formula-bg)!important;color:var(--article-formula-text)!important;text-align:center;border:1px solid var(--article-formula-border);border-radius:6px 16px 16px 16px!important;border-left:5px solid var(--article-formula-border)}.concept{background-color:var(--article-problem-bg)!important;color:var(--article-problem-text)!important;border:1px solid var(--article-problem-border);border-radius:6px 16px 16px 16px!important;box-shadow:0 0 6px rgba(139,92,246,.15),0 0 4px rgba(0,0,0,.06)}.notice{background-color:var(--article-notice-bg)!important;color:var(--article-notice-text)!important;text-align:left;border:1px solid var(--article-notice-border);border-left:5px solid var(--article-notice-accent);border-radius:16px 16px 16px 5px!important;box-shadow:0 0 6px rgba(0,114,255,.15),0 0 4px rgba(0,0,0,.06)}@supports (corner-shape:squircle){.concept,.formula,.notice,.problem{--sq:38px;--sq-tight:10px;corner-shape:squircle}.problem{border-radius:var(--sq-tight) var(--sq-tight) var(--sq) var(--sq)!important}.concept,.formula{border-radius:var(--sq-tight) var(--sq) var(--sq) var(--sq)!important}.notice{border-radius:var(--sq) var(--sq) var(--sq) var(--sq-tight)!important}}.concept li,.concept ul,.formula li,.formula ul,.problem li,.problem ul{list-style-position:inside;margin-bottom:10px!important}.concept li:last-child,.concept ul:last-child,.formula li:last-child,.formula ul:last-child,.problem li:last-child,.problem ul:last-child{margin-bottom:0!important}@media (max-width:768px){.concept,.formula,.notice,.problem{padding:1rem;margin:1.5em 0}}.nnmi{--_nnmi-text:var(--nnmi-text, var(--text-primary-color, #141414));--_nnmi-text-2:color-mix(in srgb, var(--_nnmi-text) 78%, transparent);--_nnmi-muted:var(--nnmi-muted, color-mix(in srgb, var(--_nnmi-text) 60%, transparent));--_nnmi-surface:var(--nnmi-surface, var(--bg-color, #fff));--_nnmi-bg:var(--nnmi-bg, var(--bg-color, #fff));--_nnmi-border:var(--nnmi-border, var(--border-color, var(--input-border-color, rgb(0 0 0 / 0.14))));--_nnmi-border-strong:var(--nnmi-border-strong, color-mix(in srgb, var(--_nnmi-text) 28%, transparent));--_nnmi-focus:var(--nnmi-focus, var(--_nnmi-text));--_nnmi-fill:color-mix(in srgb, var(--_nnmi-text) 5.5%, transparent);--_nnmi-fill-2:color-mix(in srgb, var(--_nnmi-text) 9%, transparent);--_nnmi-sel:var(--nnmi-selection, color-mix(in srgb, var(--brand-color, #0072ff) 26%, transparent));--_nnmi-sel-idle:var(--nnmi-selection-inactive, color-mix(in srgb, var(--_nnmi-text) 14%, transparent));--_nnmi-chip:var(--nnmi-chip-bg, var(--_nnmi-fill));--_nnmi-chip-hover:color-mix(in srgb, var(--_nnmi-chip), var(--_nnmi-text) 4%);--_nnmi-chip-border:var(--nnmi-chip-border, color-mix(in srgb, var(--_nnmi-text) 38%, transparent));--_nnmi-correct:var(--nnmi-correct, var(--active-green, #16a34a));--_nnmi-incorrect:var(--nnmi-incorrect, var(--bttn-red, #dc2626));--_nnmi-partial:var(--nnmi-partial, #d97706);--_nnmi-pending:var(--nnmi-pending, var(--brand-color, #0072ff));--_nnmi-error:var(--nnmi-error, var(--bttn-red, #dc2626));--_nnmi-sweep:color-mix(in srgb, var(--_nnmi-pending) 26%, transparent);--_nnmi-shadow:var(--nnmi-shadow, 0 0 0 1px rgb(0 0 0 / 0.06), 0 2px 6px -2px rgb(0 0 0 / 0.08), 0 16px 32px -12px rgb(0 0 0 / 0.2));--_nnmi-ease:cubic-bezier(0.22, 1, 0.36, 1);--_nnmi-tool-h:2em;--_nnmi-inset:0.375em;--_nnmi-r:var(--nnmi-radius, 22px);--_nnmi-k:1;--_nnmi-r-box:var(--nnmi-radius-box, calc(var(--_nnmi-r) * var(--_nnmi-k)));--_nnmi-r-pop:calc(var(--_nnmi-r) * 0.7273 * var(--_nnmi-k));--_nnmi-r-inner:calc(max(var(--_nnmi-r) * 0.7273 - 6px, 0px) * var(--_nnmi-k));--_nnmi-r-tile:calc(max(var(--_nnmi-r) * 0.7273 - 10px, 0px) * var(--_nnmi-k));--_nnmi-r-chip:calc(var(--_nnmi-r) * 0.2909 * var(--_nnmi-k));--_nnmi-r-kbd:calc(var(--_nnmi-r) * 0.2273 * var(--_nnmi-k));--_nnmi-r-tip:calc(var(--_nnmi-r) * 0.3636 * var(--_nnmi-k));--_nnmi-r-seg:calc(var(--_nnmi-r) * 0.2727 * var(--_nnmi-k));--_nnmi-pill:999px;position:relative;display:block;box-sizing:border-box;color:var(--_nnmi-text);font-family:var(--nnmi-font, inherit);font-size:var(--nnmi-font-size, 16px);line-height:1.45;letter-spacing:normal;text-transform:none;text-align:start;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.nnmi.nnmi-dock[data-theme=dark],.nnmi.nnmi-overlay[data-theme=dark],[data-theme=dark] .nnmi{--_nnmi-bg:var(--nnmi-bg, #1e1e1e);--_nnmi-border:var(--nnmi-border, rgb(255 255 255 / 0.14));--_nnmi-border-strong:var(--nnmi-border-strong, rgb(255 255 255 / 0.26));--_nnmi-sel:var(--nnmi-selection, color-mix(in srgb, var(--brand-color, #0072ff) 50%, transparent));--_nnmi-sel-idle:var(--nnmi-selection-inactive, color-mix(in srgb, var(--_nnmi-text) 18%, transparent));--_nnmi-correct:var(--nnmi-correct, #4ade80);--_nnmi-incorrect:var(--nnmi-incorrect, #ff6b6b);--_nnmi-partial:var(--nnmi-partial, #fbbf24);--_nnmi-error:var(--nnmi-error, #ff6b6b);--_nnmi-sweep:color-mix(in srgb, var(--_nnmi-pending) 42%, transparent);--_nnmi-shadow:var(--nnmi-shadow, 0 0 0 1px rgb(255 255 255 / 0.1), 0 16px 36px -10px rgb(0 0 0 / 0.7))}@supports (corner-shape:squircle){.nnmi{--_nnmi-k:var(--nnmi-squircle-k, 1.6)}.nnmi .nnmi-box,.nnmi .nnmi-chip::before,.nnmi .nnmi-dock-actions .nnmi-sheet-note,.nnmi .nnmi-extra [data-tip]::after,.nnmi .nnmi-file,.nnmi .nnmi-file-btn,.nnmi .nnmi-file-open,.nnmi .nnmi-file::after,.nnmi .nnmi-kbd,.nnmi .nnmi-mathbtn,.nnmi .nnmi-pal,.nnmi .nnmi-pal-opt,.nnmi .nnmi-pal-search,.nnmi .nnmi-pal-sym,.nnmi .nnmi-pop,.nnmi .nnmi-pop-btn,.nnmi .nnmi-pop-input,.nnmi .nnmi-pop-preview,.nnmi .nnmi-preview-math,.nnmi .nnmi-sheet,.nnmi .nnmi-sheet-btn,.nnmi .nnmi-sheet-x,.nnmi .nnmi-symbtn,.nnmi .nnmi-tools,.nnmi .nnmi-tools [data-tip]::after,.nnmi .nnmi-view img,.nnmi .nnmi-xbtn{corner-shape:squircle}.nnmi-no-squircle .nnmi,.nnmi.nnmi-no-squircle{--_nnmi-k:1}.nnmi-no-squircle .nnmi .nnmi-box,.nnmi-no-squircle .nnmi .nnmi-chip::before,.nnmi-no-squircle .nnmi .nnmi-extra [data-tip]::after,.nnmi-no-squircle .nnmi .nnmi-file,.nnmi-no-squircle .nnmi .nnmi-file-btn,.nnmi-no-squircle .nnmi .nnmi-file-open,.nnmi-no-squircle .nnmi .nnmi-file::after,.nnmi-no-squircle .nnmi .nnmi-kbd,.nnmi-no-squircle .nnmi .nnmi-mathbtn,.nnmi-no-squircle .nnmi .nnmi-pal,.nnmi-no-squircle .nnmi .nnmi-pal-opt,.nnmi-no-squircle .nnmi .nnmi-pal-search,.nnmi-no-squircle .nnmi .nnmi-pal-sym,.nnmi-no-squircle .nnmi .nnmi-pop,.nnmi-no-squircle .nnmi .nnmi-pop-btn,.nnmi-no-squircle .nnmi .nnmi-pop-input,.nnmi-no-squircle .nnmi .nnmi-pop-preview,.nnmi-no-squircle .nnmi .nnmi-preview-math,.nnmi-no-squircle .nnmi .nnmi-sheet,.nnmi-no-squircle .nnmi .nnmi-sheet-btn,.nnmi-no-squircle .nnmi .nnmi-sheet-x,.nnmi-no-squircle .nnmi .nnmi-symbtn,.nnmi-no-squircle .nnmi .nnmi-tools,.nnmi-no-squircle .nnmi .nnmi-tools [data-tip]::after,.nnmi-no-squircle .nnmi .nnmi-view img,.nnmi-no-squircle .nnmi .nnmi-xbtn,.nnmi.nnmi-no-squircle .nnmi-box,.nnmi.nnmi-no-squircle .nnmi-chip::before,.nnmi.nnmi-no-squircle .nnmi-extra [data-tip]::after,.nnmi.nnmi-no-squircle .nnmi-file,.nnmi.nnmi-no-squircle .nnmi-file-btn,.nnmi.nnmi-no-squircle .nnmi-file-open,.nnmi.nnmi-no-squircle .nnmi-file::after,.nnmi.nnmi-no-squircle .nnmi-kbd,.nnmi.nnmi-no-squircle .nnmi-mathbtn,.nnmi.nnmi-no-squircle .nnmi-pal,.nnmi.nnmi-no-squircle .nnmi-pal-opt,.nnmi.nnmi-no-squircle .nnmi-pal-search,.nnmi.nnmi-no-squircle .nnmi-pal-sym,.nnmi.nnmi-no-squircle .nnmi-pop,.nnmi.nnmi-no-squircle .nnmi-pop-btn,.nnmi.nnmi-no-squircle .nnmi-pop-input,.nnmi.nnmi-no-squircle .nnmi-pop-preview,.nnmi.nnmi-no-squircle .nnmi-preview-math,.nnmi.nnmi-no-squircle .nnmi-sheet,.nnmi.nnmi-no-squircle .nnmi-sheet-btn,.nnmi.nnmi-no-squircle .nnmi-sheet-x,.nnmi.nnmi-no-squircle .nnmi-symbtn,.nnmi.nnmi-no-squircle .nnmi-tools,.nnmi.nnmi-no-squircle .nnmi-tools [data-tip]::after,.nnmi.nnmi-no-squircle .nnmi-view img,.nnmi.nnmi-no-squircle .nnmi-xbtn{corner-shape:round}}.nnmi .nnmi-bar,.nnmi .nnmi-box,.nnmi .nnmi-chip,.nnmi .nnmi-chip-in,.nnmi .nnmi-count,.nnmi .nnmi-cue-what,.nnmi .nnmi-dock-actions,.nnmi .nnmi-dock-bar,.nnmi .nnmi-dock-hint,.nnmi .nnmi-extra,.nnmi .nnmi-field,.nnmi .nnmi-file,.nnmi .nnmi-file-btn,.nnmi .nnmi-file-open,.nnmi .nnmi-files,.nnmi .nnmi-glue,.nnmi .nnmi-hint,.nnmi .nnmi-icon,.nnmi .nnmi-input,.nnmi .nnmi-kbd,.nnmi .nnmi-label,.nnmi .nnmi-lit,.nnmi .nnmi-mathbtn,.nnmi .nnmi-msg,.nnmi .nnmi-pal,.nnmi .nnmi-pal-empty,.nnmi .nnmi-pal-empty-title,.nnmi .nnmi-pal-grid,.nnmi .nnmi-pal-head,.nnmi .nnmi-pal-key,.nnmi .nnmi-pal-list,.nnmi .nnmi-pal-name,.nnmi .nnmi-pal-opt,.nnmi .nnmi-pal-search,.nnmi .nnmi-pal-sym,.nnmi .nnmi-pal-top,.nnmi .nnmi-pop,.nnmi .nnmi-pop-btn,.nnmi .nnmi-pop-check,.nnmi .nnmi-pop-checkbox,.nnmi .nnmi-pop-field,.nnmi .nnmi-pop-fields,.nnmi .nnmi-pop-foot,.nnmi .nnmi-pop-input,.nnmi .nnmi-pop-label,.nnmi .nnmi-pop-preview,.nnmi .nnmi-pop-scroll,.nnmi .nnmi-pop-title,.nnmi .nnmi-preview,.nnmi .nnmi-preview-hint,.nnmi .nnmi-preview-math,.nnmi .nnmi-sheet,.nnmi .nnmi-sheet-backdrop,.nnmi .nnmi-sheet-btn,.nnmi .nnmi-sheet-canvas,.nnmi .nnmi-sheet-foot,.nnmi .nnmi-sheet-head,.nnmi .nnmi-sheet-mount,.nnmi .nnmi-sheet-note,.nnmi .nnmi-sheet-title,.nnmi .nnmi-sheet-x,.nnmi .nnmi-symbtn,.nnmi .nnmi-tools,.nnmi .nnmi-view,.nnmi .nnmi-xbtn{box-sizing:border-box;margin:0;padding:0;border:0;background:0 0;color:inherit;font:inherit;line-height:inherit;letter-spacing:normal;word-spacing:normal;text-transform:none;text-indent:0;text-shadow:none;text-decoration:none;vertical-align:baseline;float:none;min-width:0;max-width:none;width:auto;height:auto}.nnmi .katex{letter-spacing:normal;word-spacing:normal;text-transform:none;text-indent:0}:where(.nnmi) .katex *{box-sizing:content-box;margin:0;padding:0;border:0 solid;line-height:inherit;letter-spacing:inherit;word-spacing:inherit;text-transform:inherit}.nnmi .nnmi-box{position:relative;display:flex;flex-direction:column;border:1px solid var(--_nnmi-border);border-radius:var(--_nnmi-r-box);background:var(--_nnmi-surface);cursor:text}.nnmi:focus-within .nnmi-box{border-color:var(--_nnmi-border-strong)}.nnmi .nnmi-field{position:relative;display:block;--_nnmi-lh:1.7em;min-height:calc(var(--nnmi-min-lines,3) * var(--_nnmi-lh) + 1em);max-height:calc(var(--nnmi-max-lines,10) * var(--_nnmi-lh) + 1em);padding:.75em .875em .25em;font-size:1em;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;overflow-x:hidden;overflow-y:auto;scrollbar-width:thin;-webkit-mask-image:linear-gradient(to bottom,rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))),#000 1.25em,#000 calc(100% - 1.25em),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));mask-image:linear-gradient(to bottom,rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))),#000 1.25em,#000 calc(100% - 1.25em),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));transition:--nnmi-fade-s .2s ease,--nnmi-fade-e .2s ease;outline:0;caret-color:var(--_nnmi-text);-webkit-tap-highlight-color:transparent}.nnmi .nnmi-field.is-empty::before{content:attr(data-placeholder);position:absolute;inset:0.75em 0.875em auto;color:var(--_nnmi-muted);pointer-events:none}@supports (-webkit-touch-callout:none){.nnmi .nnmi-field,.nnmi .nnmi-input,.nnmi .nnmi-pal-search,.nnmi .nnmi-pop-input{font-size:max(1em, 16px)}}.nnmi .nnmi-chip{position:relative;isolation:isolate;display:inline-flex;max-width:100%;padding:0 .3em;cursor:pointer;-webkit-user-select:none;user-select:none}.nnmi .nnmi-chip-in{display:block;padding-block:0.3em;margin-block:-0.3em;white-space:nowrap;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scrollbar-width:none}.nnmi .nnmi-chip-in::-webkit-scrollbar{display:none}.nnmi .nnmi-chip::before{content:'';position:absolute;inset:0.2em 0.02em;z-index:-1;border-radius:var(--_nnmi-r-chip);background:var(--_nnmi-chip)}.nnmi .nnmi-chip .katex{font-size:1.05em}.nnmi .nnmi-chip.is-raw{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.875em}.nnmi .nnmi-chip.is-editing{cursor:text}.nnmi .nnmi-chip.is-editing::before{background:var(--_nnmi-chip);box-shadow:inset 0 0 0 1px var(--_nnmi-chip-border)}.nnmi .nnmi-chip.is-error::before{background:color-mix(in srgb,var(--_nnmi-error) 9%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--_nnmi-error) 35%,transparent)}.nnmi .katex-error{color:var(--_nnmi-error)!important}.nnmi .nnmi-input{box-sizing:content-box;min-width:3ch;max-width:100%;height:1.3em;line-height:1.3em;border-radius:0;outline:0;caret-color:var(--_nnmi-text);-webkit-appearance:none;appearance:none}.nnmi .nnmi-glue{display:inline-flex;align-items:baseline;max-width:100%;white-space:nowrap}.nnmi .nnmi-glue>.nnmi-chip{flex:0 1 auto}.nnmi .nnmi-bar{container:nnmi-bar/inline-size;display:flex;align-items:center;gap:.5em;padding:var(--_nnmi-inset);line-height:1.4;cursor:text}.nnmi .nnmi-hint{flex:1 1 auto;padding-left:calc((.875em - var(--_nnmi-inset))/ .8125);overflow:hidden;color:var(--_nnmi-muted);font-size:.8125em;white-space:nowrap;text-overflow:ellipsis;opacity:0;transition:opacity 160ms var(--_nnmi-ease)}.nnmi:focus-within .nnmi-hint{opacity:1}.nnmi .nnmi-kbd{display:inline-block;min-width:1.4em;padding:.1em .4em;border-radius:var(--_nnmi-r-kbd);background:var(--_nnmi-fill);box-shadow:inset 0 0 0 1px var(--_nnmi-border);color:var(--_nnmi-text);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;line-height:1.35;text-align:center}.nnmi .nnmi-preview{display:flex;align-items:center;gap:.625em;flex:1 1 auto;height:var(--_nnmi-tool-h);pointer-events:none;animation:nnmi-foot-in 160ms var(--_nnmi-ease)}@keyframes nnmi-foot-in{from{opacity:0;translate:0 3px}}.nnmi .nnmi-count[hidden],.nnmi .nnmi-hint[hidden],.nnmi .nnmi-msg[hidden],.nnmi .nnmi-preview[hidden]{display:none}.nnmi .nnmi-preview-math{display:inline-flex;align-items:center;flex:0 1 auto;min-width:2.5em;height:100%;padding:0 .75em;border-radius:var(--_nnmi-pill);background:var(--_nnmi-fill);white-space:nowrap;overflow:hidden}.nnmi .nnmi-preview-math .katex{font-size:1.1em}.nnmi .nnmi-preview-math.is-clipped{-webkit-mask-image:linear-gradient(90deg,transparent 0.375em,#000 1.75em);mask-image:linear-gradient(90deg,transparent 0.375em,#000 1.75em)}.nnmi .nnmi-preview-math.is-empty{color:var(--_nnmi-muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8125em}.nnmi .nnmi-preview-hint{flex:none;color:var(--_nnmi-muted);font-size:.8125em;white-space:nowrap}@container nnmi-bar (max-width:26rem){.nnmi .nnmi-cue-what,.nnmi .nnmi-preview-hint.is-finish{display:none}}.nnmi .nnmi-tools{display:flex;flex:none;margin-left:auto;height:var(--_nnmi-tool-h);padding:2px;border-radius:var(--_nnmi-pill);background:var(--_nnmi-bg);box-shadow:0 0 0 1px var(--_nnmi-border),0 1px 2px rgb(0 0 0 / .05)}.nnmi .nnmi-mathbtn,.nnmi .nnmi-symbtn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.4286em;height:100%;color:var(--_nnmi-text);font-size:.875em;font-weight:500;line-height:1;white-space:nowrap;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;transition:scale 150ms var(--_nnmi-ease)}.nnmi .nnmi-mathbtn{padding:0 .857em 0 .714em;border-radius:var(--_nnmi-pill) var(--_nnmi-r-seg) var(--_nnmi-r-seg) var(--_nnmi-pill)}.nnmi .nnmi-symbtn{width:2.143em;border-radius:var(--_nnmi-r-seg) var(--_nnmi-pill) var(--_nnmi-pill) var(--_nnmi-r-seg)}.nnmi .nnmi-symbtn::before{content:'';position:absolute;top:.5em;bottom:.5em;left:-.5px;width:1px;background:var(--_nnmi-border);transition:opacity 120ms ease}.nnmi .nnmi-symbtn[aria-expanded=true]::before{opacity:0}.nnmi .nnmi-icon{display:block;flex:none;width:16px;height:16px}.nnmi .nnmi-chev{color:var(--_nnmi-text-2);transition:rotate .2s var(--_nnmi-ease)}.nnmi .nnmi-symbtn[aria-expanded=true]{background:var(--_nnmi-fill-2)}.nnmi .nnmi-symbtn[aria-expanded=true] .nnmi-chev{rotate:180deg}.nnmi .nnmi-mathbtn:active,.nnmi .nnmi-pop-btn:active:not(:disabled),.nnmi .nnmi-symbtn:active,.nnmi .nnmi-xbtn:active:not(:disabled){scale:0.96}.nnmi .nnmi-file-btn:focus-visible,.nnmi .nnmi-file-open:focus-visible,.nnmi .nnmi-mathbtn:focus-visible,.nnmi .nnmi-pop-btn:focus-visible,.nnmi .nnmi-pop-checkbox:focus-visible,.nnmi .nnmi-sheet-btn:focus-visible,.nnmi .nnmi-sheet-x:focus-visible,.nnmi .nnmi-symbtn:focus-visible,.nnmi .nnmi-xbtn:focus-visible{outline:2px solid var(--_nnmi-focus);outline-offset:2px}@media (hover:hover) and (pointer:fine){.nnmi .nnmi-chip:hover::before{background:var(--_nnmi-chip-hover)}.nnmi .nnmi-chip.is-editing:hover::before{background:var(--_nnmi-chip)}.nnmi .nnmi-mathbtn:hover,.nnmi .nnmi-pop-btn:not(.is-primary):not(:disabled):hover,.nnmi .nnmi-sheet-btn:not(.is-primary):not(:disabled):hover,.nnmi .nnmi-sheet-x:hover,.nnmi .nnmi-symbtn:hover,.nnmi .nnmi-xbtn:not(:disabled):hover{background:var(--_nnmi-fill-2)}.nnmi .nnmi-tools:hover .nnmi-symbtn::before{opacity:0}.nnmi .nnmi-extra [data-tip]::after,.nnmi .nnmi-tools [data-tip]::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 8px);right:0;z-index:2;padding:.4em .7em;border-radius:var(--_nnmi-r-tip);background:var(--tooltip-bg,#282828);color:#fff;font-size:.857em;font-weight:450;line-height:1.2;letter-spacing:normal;text-transform:none;white-space:nowrap;box-shadow:0 4px 12px -4px rgb(0 0 0 / .3);opacity:0;translate:0 2px;pointer-events:none;transition:opacity 120ms ease,translate 120ms ease}.nnmi .nnmi-extra [data-tip]:hover::after,.nnmi .nnmi-tools [data-tip]:hover::after{opacity:1;translate:0 0;transition-delay:0.5s}.nnmi .nnmi-extra [data-tip]:active::after,.nnmi .nnmi-tools [aria-expanded=true]:hover::after,.nnmi .nnmi-tools [data-tip]:active::after,.nnmi.is-tipless .nnmi-extra [data-tip]::after,.nnmi.is-tipless .nnmi-tools [data-tip]::after{opacity:0;transition:none}}@media (pointer:coarse){.nnmi{--_nnmi-tool-h:2.25em;--_nnmi-inset:0.5em;--_nnmi-r:var(--nnmi-radius, 26px)}.nnmi .nnmi-symbtn{width:2.571em}.nnmi .nnmi-mathbtn::after,.nnmi .nnmi-symbtn::after{content:'';position:absolute;inset:-6px 0}.nnmi .nnmi-symbtn::after{right:-8px}.nnmi .nnmi-preview-hint.is-finish{display:none}}.nnmi.is-readonly .nnmi-bar{visibility:hidden}.nnmi.is-readonly .nnmi-box{background:0 0;cursor:default}.nnmi.is-readonly .nnmi-field{cursor:text}.nnmi.is-readonly .nnmi-file-btn{display:none}.nnmi.is-readonly .nnmi-field.is-empty::before{content:none}.nnmi.is-readonly .nnmi-chip{cursor:default}.nnmi.is-readonly .nnmi-chip::before{background:0 0}.nnmi[data-state=correct]{--_nnmi-state:var(--_nnmi-correct)}.nnmi[data-state=incorrect]{--_nnmi-state:var(--_nnmi-incorrect)}.nnmi[data-state=partial]{--_nnmi-state:var(--_nnmi-partial)}.nnmi[data-state=pending]{--_nnmi-state:var(--_nnmi-pending)}.nnmi[data-state=error]{--_nnmi-state:var(--_nnmi-error)}.nnmi[data-state=correct] .nnmi-box,.nnmi[data-state=error] .nnmi-box,.nnmi[data-state=incorrect] .nnmi-box,.nnmi[data-state=partial] .nnmi-box{border-color:color-mix(in srgb,var(--_nnmi-state) 60%,var(--_nnmi-border));background:color-mix(in srgb,var(--_nnmi-state) 4%,var(--_nnmi-surface))}.nnmi[data-state=pending] .nnmi-box::after{content:'';position:absolute;left:var(--_nnmi-r-box);right:var(--_nnmi-r-box);bottom:-1px;height:2px;border-radius:var(--_nnmi-pill);background:var(--_nnmi-state);animation:nnmi-pending 1.4s ease-in-out infinite}@keyframes nnmi-pending{0%,100%{opacity:.25}50%{opacity:.9}}.nnmi[data-state=disabled] .nnmi-box{opacity:.55;cursor:not-allowed}.nnmi[data-state=disabled] .nnmi-field{pointer-events:none;-webkit-user-select:none;user-select:none}.nnmi .nnmi-count{display:block;margin-top:.375em;padding:0 .875em;color:var(--_nnmi-muted);font-size:.8125em;line-height:1.4;text-align:right;font-variant-numeric:tabular-nums}.nnmi .nnmi-count.is-over{color:var(--_nnmi-error)}.nnmi .nnmi-msg{display:block;margin-top:.375em;padding:0 .875em;color:var(--_nnmi-muted);font-size:.8125em;line-height:1.4;text-wrap:pretty}.nnmi[data-state=correct] .nnmi-msg,.nnmi[data-state=error] .nnmi-msg,.nnmi[data-state=incorrect] .nnmi-msg,.nnmi[data-state=partial] .nnmi-msg{color:var(--_nnmi-state)}.nnmi .nnmi-pal,.nnmi .nnmi-pop{position:absolute;z-index:30;border-radius:var(--_nnmi-r-pop);background:var(--_nnmi-bg);color:var(--_nnmi-text);line-height:1.4;box-shadow:var(--_nnmi-shadow);transform-origin:top right;transition-property:opacity,scale,display;transition-duration:180ms;transition-timing-function:var(--_nnmi-ease);transition-behavior:allow-discrete}.nnmi .nnmi-pal[hidden],.nnmi .nnmi-pop[hidden]{display:none;opacity:0;scale:0.97;pointer-events:none;transition-duration:120ms;transition-timing-function:ease-in}.nnmi .nnmi-pal:not([hidden]),.nnmi .nnmi-pop:not([hidden]){animation:nnmi-pal-in 180ms var(--_nnmi-ease)}@keyframes nnmi-pal-in{from{opacity:0;scale:0.97}}.nnmi .nnmi-pal.is-docked,.nnmi .nnmi-pop.is-docked{position:static;width:100%;margin-top:.5em;box-shadow:0 0 0 1px var(--_nnmi-border),0 8px 24px -16px rgb(0 0 0 / .25);transform-origin:top center}.nnmi .nnmi-pal{right:0;display:flex;flex-direction:column;width:min(27em,100%);max-height:23em;overflow:hidden}.nnmi .nnmi-pal.is-docked{max-height:min(20em,55vh)}.nnmi .nnmi-pal-top{position:relative;display:block;flex:none;padding:.375em;border-bottom:1px solid var(--_nnmi-border)}.nnmi .nnmi-pal-top .nnmi-icon{position:absolute;top:50%;left:1em;color:var(--_nnmi-muted);translate:0 -50%;pointer-events:none}.nnmi .nnmi-pal-search{display:block;width:100%;height:2.5em;padding:0 .75em 0 2.25em;border-radius:var(--_nnmi-r-inner);text-overflow:ellipsis;outline:0;-webkit-appearance:none;appearance:none}.nnmi .nnmi-pal-search::placeholder{color:var(--_nnmi-muted);opacity:1}.nnmi .nnmi-pal-search::-webkit-search-cancel-button{-webkit-appearance:none}@property --nnmi-fade-s{syntax:'<number>';inherits:false;initial-value:0}@property --nnmi-fade-e{syntax:'<number>';inherits:false;initial-value:0}.nnmi .nnmi-pal-list{--_nnmi-head:2em;--_nnmi-fade:1.25em;display:block;overflow-y:auto;padding:0 .375em .375em;overscroll-behavior:contain;scroll-padding:calc(var(--_nnmi-head) + var(--_nnmi-fade)) 0 var(--_nnmi-fade);scrollbar-width:thin;-webkit-mask-image:linear-gradient(to bottom,#000 var(--_nnmi-head),rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))) var(--_nnmi-head),#000 calc(var(--_nnmi-head) + var(--_nnmi-fade)),#000 calc(100% - var(--_nnmi-fade)),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));mask-image:linear-gradient(to bottom,#000 var(--_nnmi-head),rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))) var(--_nnmi-head),#000 calc(var(--_nnmi-head) + var(--_nnmi-fade)),#000 calc(100% - var(--_nnmi-fade)),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));transition:--nnmi-fade-s .2s ease,--nnmi-fade-e .2s ease}.nnmi .nnmi-pal-list.is-flat{--_nnmi-head:0px}.nnmi .nnmi-chip-in,.nnmi .nnmi-input,.nnmi .nnmi-pop-scroll{--_nnmi-fade-w:1em;-webkit-mask-image:linear-gradient(to right,rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))),#000 var(--_nnmi-fade-w),#000 calc(100% - var(--_nnmi-fade-w)),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));mask-image:linear-gradient(to right,rgb(0 0 0 / calc(1 - var(--nnmi-fade-s))),#000 var(--_nnmi-fade-w),#000 calc(100% - var(--_nnmi-fade-w)),rgb(0 0 0 / calc(1 - var(--nnmi-fade-e))));transition:--nnmi-fade-s .2s ease,--nnmi-fade-e .2s ease}.nnmi .is-fade-start{--nnmi-fade-s:0.85}.nnmi .is-fade-end{--nnmi-fade-e:0.85}.nnmi .nnmi-pal-list>.nnmi-pal-grid{padding-top:.375em}.nnmi .nnmi-pal-head{position:sticky;top:0;z-index:1;display:flex;align-items:flex-end;height:calc(var(--_nnmi-head)/ .75);padding:0 .667em .5em;background:var(--_nnmi-bg);color:var(--_nnmi-muted);font-size:.75em;font-weight:500}.nnmi .nnmi-pal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(9.5em,1fr));gap:2px}.nnmi .nnmi-pal-opt{display:grid;grid-template-columns:2.25em minmax(0,1fr);grid-template-rows:auto auto;align-content:center;column-gap:.625em;min-height:2.75em;padding:.25em;border-radius:var(--_nnmi-r-inner);cursor:pointer;-webkit-tap-highlight-color:transparent}.nnmi .nnmi-pal-sym{display:grid;place-items:center;grid-row:1/span 2;width:2.25em;height:2.25em;border-radius:var(--_nnmi-r-tile);background:var(--_nnmi-fill);line-height:1;white-space:nowrap;overflow:hidden}.nnmi .nnmi-pal-sym.is-glyph{font-family:KaTeX_Main,'Times New Roman',serif;font-size:1.3em;width:1.731em;height:1.731em}.nnmi .nnmi-pal-sym .katex{font-size:1.05em}.nnmi .nnmi-pal-name{display:block;grid-column:2;align-self:end;color:var(--_nnmi-text);font-size:.875em;font-weight:500;line-height:1.25;text-wrap:pretty}.nnmi .nnmi-pal-key{display:block;grid-column:2;align-self:start;color:var(--_nnmi-muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75em;line-height:1.4}.nnmi .nnmi-pal-grid:not(.is-tiles) .is-same .nnmi-pal-name{grid-row:1/span 2;align-self:center}.nnmi .nnmi-pal-grid:not(.is-tiles) .is-same .nnmi-pal-key{display:none}.nnmi .nnmi-pal-opt.is-active{background:var(--_nnmi-fill-2)}@keyframes nnmi-sink{to{scale:0.95;opacity:.5}}@keyframes nnmi-rise{from{scale:0.95;opacity:.5}}@supports (animation-timeline:view()){.nnmi .nnmi-pal-opt{animation:nnmi-sink linear forwards,nnmi-rise linear backwards;animation-timeline:view(block var(--_nnmi-head) 0px),view(block var(--_nnmi-head) 0px);animation-range:exit 0px exit 28px,entry 0px entry 28px}.nnmi .nnmi-pal.is-keys .nnmi-pal-opt.is-active{animation:none}}.nnmi .nnmi-pal-opt.is-active .nnmi-pal-sym{background:var(--_nnmi-bg);box-shadow:0 0 0 1px var(--_nnmi-border),0 1px 2px rgb(0 0 0 / .06)}.nnmi .nnmi-pal.is-keys .nnmi-pal-opt.is-active{box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--_nnmi-focus) 55%,transparent)}.nnmi .nnmi-pal-grid.is-tiles{grid-template-columns:repeat(auto-fill,minmax(4.25em,1fr))}.nnmi .is-tiles .nnmi-pal-opt{grid-template-columns:minmax(0,1fr);justify-items:center;row-gap:.125em;min-height:3.5em;padding:.375em .125em;text-align:center}.nnmi .is-tiles .nnmi-pal-sym{grid-row:auto;width:auto;height:1.59em;background:0 0;font-size:1.1em}.nnmi .is-tiles .nnmi-pal-opt.is-active .nnmi-pal-sym{background:0 0;box-shadow:none}.nnmi .is-tiles .nnmi-pal-name{grid-column:auto;grid-row:auto;color:var(--_nnmi-muted);font-size:.75em;font-weight:400}.nnmi .is-tiles .nnmi-pal-key{display:none}.nnmi .nnmi-pal-empty{display:block;padding:2em 1.143em;color:var(--_nnmi-muted);font-size:.875em;text-align:center;text-wrap:pretty}.nnmi .nnmi-pal-empty-title{display:block;margin-bottom:.25em;color:var(--_nnmi-text);font-weight:500}.nnmi .nnmi-pop{display:block;width:min(21em,100%);padding:.75em;transform-origin:1.5em 0}.nnmi .nnmi-pop-title{display:block;margin:.133em .267em .667em;font-size:.9375em;font-weight:600;line-height:1.3}.nnmi .nnmi-pop-preview{display:block;margin-bottom:.875em;padding:.5em .25em;border-radius:var(--_nnmi-r-inner);background:var(--_nnmi-fill)}.nnmi .nnmi-pop-scroll{--_nnmi-fade-w:1.25em;display:flex;align-items:center;min-height:3.25em;padding:0 .5em;white-space:nowrap;overflow-x:auto;overflow-y:hidden;scrollbar-width:none}.nnmi .nnmi-pop-scroll::-webkit-scrollbar{display:none}.nnmi .nnmi-pop-scroll .katex{margin-inline:auto;font-size:1.3em}.nnmi .nnmi-pop-fields{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:.625em .5em}.nnmi .nnmi-pop-field{display:flex;flex-direction:column;grid-column:span 3;gap:.3em}.nnmi .nnmi-pop-label{display:block;color:var(--_nnmi-text-2);font-size:.8125em;font-weight:500;line-height:1.3}.nnmi .nnmi-pop-input{display:block;width:100%;height:2.5em;padding:0 .75em;border:1px solid var(--_nnmi-border);border-radius:var(--_nnmi-r-inner);background:var(--_nnmi-surface);color:var(--_nnmi-text);outline:0;caret-color:var(--_nnmi-text);-webkit-appearance:none;appearance:none}.nnmi .nnmi-pop-input:focus{border-color:color-mix(in srgb,var(--_nnmi-focus) 45%,transparent)}.nnmi .nnmi-pop-check{display:flex;align-items:center;gap:.571em;min-height:2.286em;margin-top:.571em;font-size:.875em;cursor:pointer}.nnmi .nnmi-pop-checkbox{width:1.286em;height:1.286em;accent-color:var(--_nnmi-text);-webkit-appearance:auto;appearance:auto}.nnmi .nnmi-pop-foot{display:flex;align-items:center;justify-content:flex-end;gap:.25em;margin:.875em -.75em 0;padding:.625em .75em 0;border-top:1px solid var(--_nnmi-border)}.nnmi .nnmi-pop-btn{height:2.571em;padding:0 1em;border-radius:var(--_nnmi-pill);color:var(--_nnmi-text);font-size:.875em;font-weight:500;line-height:1;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;transition:scale 150ms var(--_nnmi-ease)}.nnmi .nnmi-pop-btn[data-act=text]{margin-right:auto;color:var(--_nnmi-text-2)}.nnmi .nnmi-pop-btn.is-primary{padding:0 1.286em;background:var(--bttn-primary-gradient,var(--_nnmi-text));box-shadow:var(--bttn-primary-gloss,none);color:var(--bttn-primary-text,var(--_nnmi-surface))}.nnmi .nnmi-pop-btn:disabled{opacity:.4;cursor:default}@media (pointer:coarse){.nnmi .nnmi-pop-btn{height:3.143em}.nnmi .nnmi-pal-search,.nnmi .nnmi-pop-input{height:2.75em}.nnmi .nnmi-pop-check{min-height:3.143em}}@media (prefers-reduced-motion:reduce){@keyframes nnmi-sink{to{opacity:.5}}@keyframes nnmi-rise{from{opacity:.5}}@keyframes nnmi-foot-in{from{opacity:0}}@keyframes nnmi-pal-in{from{opacity:0}}.nnmi[data-state=pending] .nnmi-box::after{animation:none;opacity:.6}.nnmi .nnmi-pal,.nnmi .nnmi-pop{transition-property:opacity,display}.nnmi .nnmi-chev,.nnmi .nnmi-mathbtn,.nnmi .nnmi-pop-btn,.nnmi .nnmi-symbtn{transition:none}.nnmi .nnmi-mathbtn:active,.nnmi .nnmi-pop-btn:active:not(:disabled),.nnmi .nnmi-symbtn:active{scale:none}}.nnmi .nnmi-field::selection,.nnmi .nnmi-glue::selection,.nnmi .nnmi-lit::selection{background:var(--_nnmi-sel);color:var(--_nnmi-text)}.nnmi.is-idle .nnmi-field::selection,.nnmi.is-idle .nnmi-glue::selection,.nnmi.is-idle .nnmi-lit::selection{background:var(--_nnmi-sel-idle)}.nnmi .nnmi-chip.is-selected{background:0 0;color:var(--_nnmi-text)}.nnmi .nnmi-chip.is-selected::before{display:none}.nnmi .nnmi-chip.is-selected::after{content:'';position:absolute;top:calc(-1 * var(--nnmi-sel-t,0px));bottom:calc(-1 * var(--nnmi-sel-b,0px));left:0;right:0;z-index:-1;background:var(--_nnmi-sel)}.nnmi.is-idle .nnmi-chip.is-selected::after{background:var(--_nnmi-sel-idle)}.nnmi .nnmi-extra{display:flex;flex:none;gap:.25em;margin-left:auto}.nnmi .nnmi-extra+.nnmi-tools{margin-left:0}.nnmi .nnmi-xbtn{position:relative;display:inline-flex;align-items:center;justify-content:center;width:var(--_nnmi-tool-h);height:var(--_nnmi-tool-h);border-radius:var(--_nnmi-pill);color:var(--_nnmi-text-2);cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;transition:scale 150ms var(--_nnmi-ease),opacity 150ms ease}.nnmi .nnmi-xbtn .nnmi-icon{width:1.125em;height:1.125em}.nnmi .nnmi-xbtn:disabled{opacity:.35;cursor:default}.nnmi .nnmi-extra [data-tip]::after{right:auto;left:50%;translate:-50% 2px}@media (hover:hover) and (pointer:fine){.nnmi .nnmi-extra [data-tip]:hover::after{translate:-50% 0}}@media (pointer:coarse){.nnmi .nnmi-xbtn::after{content:'';position:absolute;inset:-4px}}.nnmi .nnmi-files{display:flex;flex-wrap:wrap;gap:.5em;padding:.25em .875em .25em}.nnmi .nnmi-files[hidden]{display:none}.nnmi .nnmi-file{position:relative;width:4.5em;height:4.5em;border-radius:var(--_nnmi-r-tile);background:var(--_nnmi-fill);animation:nnmi-file-in 220ms var(--_nnmi-ease)}.nnmi .nnmi-file::after{content:'';position:absolute;inset:0;border-radius:var(--_nnmi-r-tile);box-shadow:inset 0 0 0 1px var(--_nnmi-border);pointer-events:none}@keyframes nnmi-file-in{from{opacity:0;transform:scale(.9)}}.nnmi .nnmi-file-open{position:relative;display:block;width:100%;height:100%;overflow:hidden;border-radius:var(--_nnmi-r-tile);cursor:zoom-in}.nnmi .nnmi-file img{display:block;width:100%;height:100%;object-fit:cover;background:#fff}.nnmi .nnmi-file.is-blank{background:var(--_nnmi-fill-2)}.nnmi .nnmi-file.is-uploading img{opacity:.5;animation:nnmi-preview-in .2s var(--_nnmi-ease)}@keyframes nnmi-preview-in{from{opacity:0}}.nnmi .nnmi-file.is-uploading .nnmi-file-open{cursor:progress}.nnmi .nnmi-file.is-uploading .nnmi-file-open::after{content:'';position:absolute;inset:0;background:linear-gradient(100deg,transparent 22%,var(--_nnmi-sweep) 50%,transparent 78%);animation:nnmi-sweep 1.2s ease-in-out infinite}@keyframes nnmi-sweep{from{transform:translateX(-100%)}to{transform:translateX(100%)}}@media (prefers-reduced-motion:reduce){.nnmi .nnmi-file.is-uploading .nnmi-file-open::after{animation:none;background:color-mix(in srgb,var(--_nnmi-sweep) 55%,transparent)}}.nnmi .nnmi-file.is-uploading .nnmi-file-edit{display:none}.nnmi .nnmi-file-btn{position:absolute;top:.25em;display:inline-flex;align-items:center;justify-content:center;width:1.375em;height:1.375em;border-radius:var(--_nnmi-pill);background:rgb(20 20 20 / .72);color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:scale 150ms var(--_nnmi-ease)}.nnmi .nnmi-file-btn:active{scale:0.9}.nnmi .nnmi-file-x{right:.25em}.nnmi .nnmi-file-edit{right:1.875em}.nnmi .nnmi-file-btn .nnmi-icon{width:.8125em;height:.8125em}@media (pointer:coarse){.nnmi .nnmi-file-btn::after{content:'';position:absolute;inset:-0.5em}}.nnmi.nnmi-overlay{position:fixed;inset:0;z-index:2147483000;display:flex;align-items:center;justify-content:center;padding:1em}.nnmi .nnmi-sheet-backdrop{position:absolute;inset:0;background:rgb(0 0 0 / .4)}.nnmi .nnmi-sheet{position:relative;outline:0;display:flex;flex-direction:column;width:min(56em,100%);height:min(40em,calc(100dvh - 2em));overflow:hidden;border-radius:var(--_nnmi-r-box);background:var(--_nnmi-bg);box-shadow:var(--_nnmi-shadow)}.nnmi .nnmi-sheet-head{display:flex;align-items:center;gap:.5em;padding:.75em .75em .5em 1.125em}.nnmi .nnmi-sheet-title{flex:1 1 auto;font-weight:600}.nnmi .nnmi-sheet-x{display:inline-flex;align-items:center;justify-content:center;width:2.25em;height:2.25em;border-radius:var(--_nnmi-pill);color:var(--_nnmi-text-2);cursor:pointer}.nnmi .nnmi-sheet-mount{--nns-hud-top:72px;position:relative;flex:1 1 auto;min-height:0;margin:0 .75em}.nnmi .nnmi-sheet-canvas{display:block}.nnmi .nnmi-sheet-canvas.is-fill{position:absolute;inset:0}.nnmi .nnmi-sheet-foot{display:flex;align-items:center;gap:.5em;padding:.75em}.nnmi .nnmi-sheet-note{flex:1 1 auto;padding-left:.375em;color:var(--_nnmi-muted);font-size:.875em}.nnmi .nnmi-sheet-btn{height:2.5em;padding:0 1.125em;border-radius:var(--_nnmi-pill);font-size:.9375em;font-weight:500;cursor:pointer;transition:scale 150ms var(--_nnmi-ease),opacity 150ms ease}.nnmi .nnmi-sheet-btn.is-primary{background:var(--_nnmi-text);color:var(--_nnmi-bg)}.nnmi .nnmi-sheet-btn:active:not(:disabled){scale:0.96}.nnmi .nnmi-sheet-btn:disabled{opacity:.5;cursor:progress}@media (max-width:640px){.nnmi.nnmi-sheet-host{align-items:flex-end;padding:0}.nnmi .nnmi-sheet{width:100%;height:min(82dvh,100dvh - 1em);border-bottom-left-radius:0;border-bottom-right-radius:0;padding-bottom:env(safe-area-inset-bottom)}}.nnmi.nnmi-dock{display:flex;flex-direction:column;height:100%;min-height:20em;outline:0}.nnmi.nnmi-dock .nnmi-sheet-canvas{position:absolute;inset:0}.nnmi.nnmi-dock.nnmi-dock-overlay{display:block}.nnmi.nnmi-dock-overlay .nnmi-sheet-mount{--nns-hud-top:calc(var(--nnmi-dock-top, 0.75em) + 3em);position:absolute;inset:0;z-index:0;margin:0}.nnmi .nnmi-dock-hint{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;padding:0 2em;pointer-events:none;color:var(--_nnmi-muted);font-size:.9375em;font-weight:500;text-align:center;transition:opacity .2s ease}.nnmi.nnmi-dock-overlay.has-ink .nnmi-dock-hint{opacity:0}.nnmi .nnmi-dock-actions,.nnmi .nnmi-dock-bar{position:absolute;z-index:2;left:var(--nnmi-dock-inset,.75em);right:var(--nnmi-dock-inset,.75em);display:flex;align-items:center;justify-content:flex-end;gap:.375em;pointer-events:none}.nnmi .nnmi-dock-bar{top:var(--nnmi-dock-top,.75em)}.nnmi .nnmi-dock-actions{bottom:var(--nnmi-dock-bottom,.75em);left:auto}.nnmi .nnmi-dock-actions .nnmi-sheet-btn,.nnmi .nnmi-dock-actions .nnmi-sheet-note,.nnmi .nnmi-dock-bar .nnmi-sheet-x{pointer-events:auto}.nnmi .nnmi-dock-actions .nnmi-sheet-note{flex:0 1 auto;min-width:0;padding:.55em .9em;border-radius:var(--_nnmi-pill);background:color-mix(in srgb,var(--_nnmi-bg) 86%,transparent);box-shadow:0 0 0 1px var(--_nnmi-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:var(--_nnmi-error);font-size:.8125em;line-height:1.2}.nnmi .nnmi-dock-actions .nnmi-sheet-note:empty{display:none}.nnmi .nnmi-dock-bar .nnmi-sheet-x{flex:0 0 auto;width:2.375em;height:2.375em;background:0 0;color:var(--_nnmi-muted);transition:background-color 150ms ease,color 150ms ease}.nnmi .nnmi-dock-actions .nnmi-sheet-btn{flex:0 0 auto;height:2.375em}.nnmi .nnmi-dock-actions .nnmi-sheet-btn.is-primary{box-shadow:0 6px 18px -8px rgb(0 0 0 / .45)}@media (hover:hover){.nnmi .nnmi-dock-bar .nnmi-sheet-x:hover{background:color-mix(in srgb,var(--_nnmi-text) 8%,transparent);color:var(--_nnmi-text)}}.nnmi .nnmi-view{position:relative;margin:0;max-width:100%;max-height:100%}.nnmi .nnmi-view img{display:block;max-width:min(64em,calc(100vw - 2em));max-height:calc(100dvh - 2em);border-radius:var(--_nnmi-r-pop);background:#fff;box-shadow:var(--_nnmi-shadow)}.nnmi .nnmi-view .nnmi-sheet-x{position:absolute;top:.5em;right:.5em;background:rgb(20 20 20 / .72);color:#fff}